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MalocclusionNCT02550938

Primer Aligner Study

A study testing Invisalign in people with Malocclusion, run by Align Technology, Inc. at 19 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To demonstrate that a primer aligner product can achieve similar results to the currently marketed product. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Malocclusion
What is being tested?
Invisalign
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
253 participants
Where
19 sitesin 2 countries
Study dates
May 2015to Sep 2020
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subject must have fully erupted dentition
  • Age range ≥18 years old (Adult subject)
  • Subjects who are indicated for either: 5, 7, 10, or 12 aligner sets

Who cannot join

  • Subject who has unerupted, erupting, partially erupted dentition (except for 2nd and 3rd molars)
  • Subject who has mixed dentition
  • Subject with periodontal disease
  • Subject with active caries
  • Subject with Temporomandibular Joint Disorders symptoms
  • Subject has undergone pre-treatment with any orthodontic appliance 3 months prior to the start of treatment
Show all 9Show fewer
  • Subject has undergone any accelerated orthodontic treatment prior to or during treatment as part of this study
  • Subject has known allergy to latex or plastic
  • Subjects who are pregnant or will become pregnant during treatment

Trial locations and contacts

19 sites in 2 countries.

19 sites in 2 countries

United States13 sites
  • Wood Orthodontics

    Anthem, Arizona, 85086

  • DMG Dental Design

    Bothell, Washington, 98012

  • Posner, Henderson & Goslee Dentistry

    Bristol, Connecticut, 06010

  • Feldman Orthodontics

    Cheshire, Connecticut, 06410

  • Comizio Orthodontics

    Eastchester, New York, 10709

  • Magic Touch Orthodontist

    Little Neck, New York, 11362

  • Wenger Orthodontics

    Mayfield Heights, Ohio, 44124

  • Meadowbrook Dental Care

    Mineola, New York, 11501

  • Cooke Orthodontics

    Napa, California, 94558

  • The Orthodontic Center

    Oakland, California, 94612

  • Dental One Reston

    Reston, Virginia, 20191

  • Green Dentistry

    San Francisco, California, 94108

  • Align Technology, Inc.

    San Jose, California, 95131

Other trials in United States

United Kingdom6 sites
  • Brixworth Dental Practice

    Brixworth, Northampton, NN6 9DS

  • Anglia Orthdontics

    Cambridge, England, CB3 9PA

  • Bluebell Dental Practice

    Chigwell, England, IG6 2QP

  • Cherrybank Dental Spa

    Edinburgh, Scotland, EH3 5DQ

  • Dream Smile Dental Clinic

    London, England, SE13 7FD

  • High Street Dental Care

    Melton Mowbray, Leicestershire, LE13 0TR

Other trials in United Kingdom

About this study

To demonstrate that a primer aligner product can achieve similar results to the currently marketed product.

Read the detailed description

The Invisalign® System consists of a series of clear plastic aligners that are intended to replace conventional wire and bracket technology for many orthodontic cases. Each custom manufactured aligner exerts gentle, continuous forces to move teeth incrementally from their original state to a final, treated state. Each aligner is worn for about two weeks, then replaced by the next in the series until the final position is achieved. For years, orthodontists and dentists have used removable appliances for orthodontic treatment. Today, with the application of computer technology and custom manufacturing, Invisalign treats a broader range of cases with greater precision.

Conditions
Malocclusion
Being tested
Invisalign
Medical subject headings
Malocclusion

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • InvisalignDevice

    The Invisalign® System consists of a series of clear plastic aligners that are intended to replace conventional wire and bracket technology for many orthodontic cases. Each custom manufactured aligner exerts gentle, continuous forces to move teeth incrementally from their original state to a final, treated state. Each aligner is worn for a defined period of time , then replaced by the next in the series until the final position is achieved. For years, orthodontists and dentists have used removable appliances for orthodontic treatment. Today, with the application of computer technology and custom manufacturing, Invisalign treats a broader range of cases with greater precision.

Study groups in NCT02550938
Study groupRoleWhat they receive
7 Aligner Cohort weartime 1ExperimentalSeven Aligner cohort will change aligners at a designated interval Invisalign is the intervention.
Receives: Device: Invisalign
7 Aligner Cohort weartime 2ExperimentalSeven Aligner cohort will change aligners at a modified interval Invisalign is the intervention.
Receives: Device: Invisalign
12 aligner cohort weartime 1ExperimentalTwelve Aligner cohort will change aligners at a designated interval Invisalign is the intervention.
Receives: Device: Invisalign
12 aligner cohort weartime 2ExperimentalTwelve Aligner cohort will change aligners at a modified interval Invisalign is the intervention.
Receives: Device: Invisalign

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total Treatment Time

    Total treatment time was measured in days. The less days a subject was in treatment, the better.

    Measured: Approximately 1 year

  2. Rate of Refinement

    Rate of Refinement was how often subjects in each cohort required additional aligners in (in addition to their originally prescribed aligners) to treat the malocclusion. For example, if a subject was originally prescribed 20 aligners for treatment, but then needed 10 more aligners, the 10 extra aligners would be considered the "refinement." The Rate of Refinement for each cohort was measured as the total number of additional aligners required to complete orthodontic treatment divided by the total number of aligners that were initially prescribed to complete treatment, multiplied by 100. The smaller the rate of refinement (%), the better.

    Measured: Approximately 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Sep 2015 (estimated)
  2. Study startMay 2015
  3. Primary completionSep 2020
  4. Study completionSep 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
253 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02550938
Sponsor's protocol ID
CSP-300307-00
Status last verified
Jan 2021
First submitted
23 Jul 2015
Last updated
3 Feb 2021
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Invisalign in people with Malocclusion, run by Align Technology, Inc. at 19 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Feb 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 19 sites in United States, United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Feb 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total Treatment Time (time frame: Approximately 1 year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Feb 2021.

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